In truth, within the universe, every powerhouse's cultivation system, including the ultimate limit of the strength they could attain, fell within the restrictions of the rules. However, once some powerhouses cultivated to a certain realm, if they gained the favor of the cosmic rules, they could directly receive the corresponding authority and be granted great strength, without needing to continue cultivating painstakingly on their own.
Thus, both Universe Controllers and Universe Destroyers could be considered products of the implementation of these rules. The two stood in opposition to each other: one was responsible for creating life and worlds, while the other was responsible for destruction and purification.
Within the universe, powerhouses who cultivated to a certain realm had essentially attained eternal lifespans. No matter how vast the universe was, as long as no restrictions were placed on these lives that came into being, their numbers would continue to grow. After a long period of accumulation, the universe ultimately could not permit so many powerhouses to exist.
Because these powerhouses needed to cultivate, they needed corresponding resources and energy. Yet the universe's total energy did not change. Thus, as the number of powerhouses grew, it would ultimately become difficult for individual powerhouses to improve their strength. Even those who emerged later would find it extremely difficult to continue advancing their realms.
Therefore, to maintain the normal operation of the entire universe, there had to be something capable of eliminating the weak who could no longer improve. This was the often-mentioned law of the universe, survival of the fittest. Whether it was the various competitive mechanisms formed within the universe or the various powerhouses born of these rules, the purpose of their existence was to maintain the balance and development of the entire universe.
Thus, both World Beasts and the even higher-ranking